Nissan Motor Co. has come up with a new technology of petrol engine which could end the diesel engine's life in the automobile world.
Called the variable compression ratio engine, Nissan's engineers say the engine at a given time will choose the optimal compression ratio for combustion. This is a key factor in petrol engines is the trade-off between power and efficiency.
The most important aspect is that the new engine delivers the performance of a turbocharged petrol engine yet give the fuel efficiency and power of today's diesel or hybrid engines.
Kinichi Tanuma, a senior Nissan engineer who leads product development for the premium Infiniti brand, told at a pre-launch briefing last month that, "Diesel engine is a hot topic globally. We believe this new engine of ours is an ultimate gasoline engine that could over time replace the (advanced) diesel engine of today,"
The new Variable Compression-Turbo (VC-T) engine is expected to be officially unveiled at the 2016 Paris Motor Show to be held in September. The engine will debut in Nissan's luxury brand Infiniti cars and then later on Nissan brand of cars and possibly with its partner, Renault.
The engine is powered by turbocharged, 2-litre, four-cylinder VC-T engine which averages 27 percent better fuel economy than the 3.5-litre V6 engine it will replace.
Nissan's engineers said that the engine is cheaper than today's turbo-charged diesel engine and meet emission norms without much cost required.